SsangYong Korando III (2010 year). Manual - part 582

02-21

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Operation 2.

When air bag deployment signal (OFF→ON) is input 7 seconds (T4) after IGN ON

Signal from unlock relay is output for 5 seconds (T3) after 40 ms (T2)

When turning IGN OFF during 5 seconds (T3) of unlock relay signal output

Signal from unlock relay is input for the rest of the time

B. 

C. 

D. 

E.

Operation 1.

Air bag deployment signal is not input for initial 7 seconds (T4) after IGN ON

A.

The room lamp comes on when the air bag deployment signal is input except when the room lamp 

switch is turned off.

The hazard warning lamp flashes when the air bag deployment signal is input.

Resetting the auto door unlock function turns off the battery (cutting off BCM power).

-

-

-

(2) BCM control when air bag deployment signal is input 

The UNLOCK by the air bag deployment signal takes priority over the LOCK/UNLOCK control from 

other functions.

The LOCK/UNLOCK requests from other functions during or after the UNLOCK output by the air 

bag signal are ignored. However, the LOCK control is carried out when the ignition switch is turned 

to the "OFF" position.

The same request during the LOCK/UNLOCK output is ignored. However, the UNLOCK by the air 

bag deployment signal or operation by the smart key is carried out.

When LOCK and UNLOCK outputs occur at the same time, the LOCK output is carried out and 

UNLOCK is ignored.

1.

2. 

3. 

4.

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4. AIR BAG SYSTEM SELF DIAGNOSIS 

1) Air Bag Unit (SDM) Self Diagnosis

The air bag unit monitors the internal/external devices of the air bag system including battery voltage, 

limits certain functions of the air bag, and turns on the air bag warning lamp on the instrument cluster 

according to the conditions.  

Conditions for detecting and clearing faults

The time for detecting errors and clearing the errors is as follows:

▶

Monitoring system

Diagnosis 

cycle

Time for 

detecting

Time for 

clearing

Clearing fault

Inflator circuit

400 ms

4 seconds

8 seconds

with a diagnostic device

warning lamp circuit

100 ms

4 seconds

8 seconds

with a diagnostic device

Battery voltage

10 ms

4 seconds

4 seconds

with a diagnostic device

Impact sensor

IGN ON

1 seconds

2 to 4 

seconds

(next Ign)

with a diagnostic device

Impact record

(air bag deployed)

-

Immediately

-

by replacing SDM

(cannot be cleared with a 

diagnostic device)

SDM internal fault

-

-

by replacing SDM

(cannot be cleared with a 

diagnostic device)

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Air bag warning lamp 

2) Air Bag Warning Lamp  

The air bag unit turns on the air bag warning lamp on the instrument cluster for 6 seconds after IGN ON 

while performing self diagnosis for the air bag system. If no fault is found in the system, it turns off the 

warning lamp. After this, the unit monitors the system regularly, and notifies the driver by turning on the 

air bag warning lamp when a fault is found in the system.

System normal 

Comes on for 6 seconds after IGN ON and then goes out.

▶

The air bag warning lamp comes on when:

* 

diagnosis is performed for the inside/external devices of 

the system when the ignition is turned on

the air bag system is malfunctioning

the air bag unit and a diagnostic equipment communicate 

each other

-

-

-

(1) Air bag warning lamp ON at initial IGN ON

02-24

System malfunctioning 

Comes on for 6 seconds after IGN ON and goes out for 1 second, and then remains on.

▶

(2) Air bag warning lamp operation during driving

The air bag warning lamp comes on when the air bag unit (SDM) detects a system malfunction. The 

warning lamp goes out when the malfunction disappears.